In geosciences, satellite data are very important, where in-situ methods cannot be applicable. Especially the gravity data are very important for investigating the buried structures and discovering the changes of subterranean media alongside laterally. Nowadays, many global satellite models are used for solving these problems. The TOPEX V28.1 data set has a much more frequent sampling interval than other models. However, the TOPEX data set obtained in the general application is free air anomaly values. For this reason, researchers do not prefer TOPEX dataset for evaluation. In this study the target is using of TOPEX data set, which has a much more frequent sampling interval, to obtain Bouguer gravity values. These calculated new Bouguer gravity results have been compared with the results of the EGM08 and WGM2012 models to check coherence. The depth values which calculated by using the power spectrum method were investigated the findings have been compared with the result of the horizontal derivatives and finally findings of the general tectonic of the western Anatolian which obtained by using 3-D Euler depth solutions were discussed.